Track-sander.



Nos27,294.' v I PATENTED JULY 31, 190

' I P. B. COREY.

TR-AGKSANDBR.

APPLICATION FILED FEB. 15. 1904.

0 lhve ntor:

' 'Witnesses:'&

. 4 FredBLC Y- linens; QQREY.'OEQSGHENECTADY; NEW Yon...

UNITED smrns PATE T I Assreno 11a new I 311 261 119 A. QORPOR TJ -QF"NEW" 59 K I TRACK-saunas;

I Specification of i l'iettgere-slfqtenti.

' friction between the wheels and therails; and

it has particular reference to what I may term the ejector type of pneumatic sanders'that is, sanders of the type inwhich the sand after being delivered to a sand-trap is withdrawn therefrom by a suction produced by a blast of air delivered by the nozzle 10 cated between the trap and the deliverypipe and. arranged to discharge toward the latter. 1

The principal object of my invention is to provide an efficient and relatively inexpensive sander in whichthe parts arearranged so as to produce a compact structure; and to this end it comprises certain novel features and arrangements of parts, which will be best understood by reference to the following detailed description, taken in'connection with the accompanying drawings.

In said drawings,Figure 1 is a central vertical section of a sander constructed in accordance with my invention, the section'being taken on the line 1 1 of Fig. 2; and Fig. 2 is a plan view of the lower half of the sander.

' In both views like characters refer to like,

having an outer upturned edge 7, which 00- operates with the downward and inward inclined portion 9 of the upper casing. to produce the trap action. The tray 6 is suitably supported by arms .10, 11, and 12, formed integral therewith and with the lower casting 2 of the casing. Fromthe above it through" theopening'; it will not pass nor- Patented. mar, races. Application filed February 15 ,'1904 Serial-Kt. 1935 5 will be seen that when sand' is: supplied mally over the outer edge 7 ofthe tray 6 1 For the purpose of carrying the sand so de- A posited over the edge of the tray a nozzle 13 is formed on the-under side'of the tray directly opposite the delivery-o ening6 and in line with bothsaid supply an delivery open- I ings. This nozzle is supplied with com-, pressed air through the port 14 and theo ening 15. The latter is suitably threade for tends through the supporting-arm 12 of the tray. Suitable inlet-ports 16 16 are provided in the, upper side of the casing, and when air is suppliedto the nozzle 13 a suc- .6 5 A the reception of an air-supply pipe and extion is produced which draws air through the openings 16 with suflicient velocity to carry carry the sand over theouter edge 7 of the 'tray 6", and thencethrough the outlet-o ening 6. The nozzle 13 is provided with a ellmouth,- which'has the effect of allowing the air as it passes outward to expand and at-' tain a very high velocity, and thereby pro-' duce a very'strong-current of air throughthe I l ports 16 16 and over the sand-tray 6 7 It is apparent that many modifications A and alterations may be made in thespecific I sander'structure herein disclosed without departing from the spirit and scope of my, in

vention, and I therefore do not wish to be limited to the matter actually shown, but aim to cover by the terms of the a pended claims all such. alterations and modi cations.

What I claim as new, and desire to secure by Letters Patent of the United States, is

1. A track-sander comprising a casing having inlet and outlet sand-pipe openings, a tray forming a sand+tra with said casing, an

I said trap.

2. A track-sander comprising a casing having alined inlet and outlet sand-pipe open-- elow said tray and ings, a sand-trap located between said open ings, and an air-nozzle in line with said openings and serving to supply air to remove the sand from said trap. i

3. A track-sander comprising a casing having alined inlet andoutlet sand-pipe openings, a sand-trap located between said openings, and an ejector-nozzle in line with said openings and serving to produce a suction to casing, a sand-tray located Within said casdraW sand from said trap. ing, a plurality of arms connecting said tray 4:. A sand-trap comprising-a casing having and casing, an air-nozzle on said tray, and I5 alined inlet and outlet sandipe openings, a an air passage communicating therewith 5 horizontal tray located beIoW said inletthrough one of said arms.

opening and having an u turned edge 00- In Witness whereof I have hereunto set my operating with a doWnWar extension of said hand this 12th day of February, 1904. casing to form a sand-trap, an ejector-nozzle located on the under side of said tray in FRED COREY 10 line with said openings and serving to pro- Witnesses:

duce a suction to draw sand from said trap. BENJAMIN B. HULL,

5. In a track-sander, the combination of a HELEN ORFoRD. 

